Backports
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8083072 | emb-9 | Aleksey Shipilev | P4 | Resolved | Fixed | b35 |
Description
Current C1/C2 compiler time tracing is old and rusty:
- separate VM options for C1 and C2 compilers
- C2 tracking ignores CompilerBroker (mostly), and doing the tracking on its own
- bailouts and invalidates are ignored in time tracks
- significant parts of compiler code is not timed accurately
We need to fix that for any future compiler performance work to succeed.
(Patch follows).
- separate VM options for C1 and C2 compilers
- C2 tracking ignores CompilerBroker (mostly), and doing the tracking on its own
- bailouts and invalidates are ignored in time tracks
- significant parts of compiler code is not timed accurately
We need to fix that for any future compiler performance work to succeed.
(Patch follows).
Attachments
Issue Links
- backported by
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JDK-8083072 Compiler time traces should be improved
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- Resolved
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- relates to
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JDK-8059020 -XX:+CITime should provide more segregated info about C1/C2/Tiered counters
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- Open
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- Resolved
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